Rhizobium Grants the Reduction of Phosphate Fertilization during the Production of Coffee Seedlings

The use of bacterial inoculants is an attractive alternative that could reduce the consumption chemical fertilizers in crops. In production system quality coffee seedlings, it essential to achieve adequate balance nutrients allows for healthy plants are resistant subsequent handling. objective this work was evaluate effect Rhizobium sp. inoculation on growth, nutrition and seedlings cultivated with different doses phosphoric fertilization. Inoculation tests were carried out under nursery conditions using Coffea arabica L. cv. “Isla 5–15” canephora Pierre ex Froehner “Robusta” seeds inoculated Rpr2 strain. Sixty days after sowing, hypocotyldonal graft performed, resulting also treated inoculant. Plants then planted substrate phosphorus (P): 25, 50, 75 100%. At seven months cultivation, variables growth (plant height, stem diameter, number leaf pairs, main root length, volume, dry mass aerial part, total), (leaf P contents) posture index evaluated. stimulated part (37%), (34%), grafted postures (30%), absorption (42%) allowed a decrease from 25 75% mineral fertilizer. For first time Cuba, benefits rhizobial demonstrated. through method proposed study can be recommended as new easy, cost-effective efficient approach obtain additional improving nutritive elements characteristics seedlings.